Grigutis, Andrius, and Darius Šiaučiūnas. “On the Modulus of the Selberg Zeta-Functions in the Critical Strip”. Mathematical Modelling and Analysis 20, no. 6 (November 23, 2015): 852-865. Accessed September 20, 2024. https://jbem.vilniustech.lt/index.php/MMA/article/view/1039.